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        <h2>
          <span class="refentrytitle">stix</span>
        </h2>
        <p>stix — 
      Semi-physical model of a stick sound.
          </p>
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      <div class="refsect1">
        <a id="idp151581648"></a>
        <h2>Description</h2>
        <p>
      <span class="emphasis"><em>stix</em></span> is a semi-physical model of a stick sound. It is one of the PhISEM percussion opcodes. PhISEM (Physically Informed Stochastic Event Modeling) is an algorithmic approach for simulating collisions of multiple independent sound producing objects.
    </p>
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      <div class="refsect1">
        <a id="idp151583792"></a>
        <h2>Syntax</h2>
        <pre class="synopsis">ares <span class="command"><strong>stix</strong></span> iamp, idettack [, inum] [, idamp] [, imaxshake]</pre>
      </div>
      <div class="refsect1">
        <a id="idp151586064"></a>
        <h2>Initialization</h2>
        <p>
      <span class="emphasis"><em>iamp</em></span> -- Amplitude of output.  Note: As these instruments are stochastic, this is only a approximation.
    </p>
        <p>
      <span class="emphasis"><em>idettack</em></span> -- period of time over which all sound is stopped
    </p>
        <p>
      <span class="emphasis"><em>inum</em></span> (optional) -- The number of beads, teeth, bells, timbrels, etc.  If zero, the default value is 30.
    </p>
        <p>
      <span class="emphasis"><em>idamp</em></span> (optional) -- the damping factor, as part of this equation:
      </p>
        <div class="literallayout">
          <p>damping_amount = 0.998 + (idamp * 0.002)</p>
        </div>
        <p>
    </p>
        <p>
      The default <span class="emphasis"><em>damping_amount</em></span> is 0.998 which means that the default value of <span class="emphasis"><em>idamp</em></span> is 0. The maximum <span class="emphasis"><em>damping_amount</em></span> is 1.0 (no damping). This means the maximum value for <span class="emphasis"><em>idamp</em></span> is 1.0.
    </p>
        <p>
      The recommended range for <span class="emphasis"><em>idamp</em></span> is usually below 75% of the maximum value.
    </p>
        <p>
      <span class="emphasis"><em>imaxshake</em></span> (optional) -- amount of energy to add back into the system. The value should be in range 0 to 1.
    </p>
      </div>
      <div class="refsect1">
        <a id="idp151661248"></a>
        <h2>Examples</h2>
        <p>
      Here is an example of the stix opcode. It uses the file <a class="ulink" href="examples/stix.csd" target="_top"><em class="citetitle">stix.csd</em></a>.

      </p>
        <div class="example">
          <a id="idp151663104"></a>
          <p class="title">
            <strong>Example 842. Example of the stix opcode.</strong>
          </p>
          <div class="example-contents">
            <p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
            <pre class="programlisting">
<span class="csdtag">&lt;CsoundSynthesizer&gt;</span>
<span class="csdtag">&lt;CsOptions&gt;</span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac      <span class="comment">;;;realtime audio out</span>
<span class="comment">;-iadc    ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o stix.wav -W ;;; for file output any platform</span>
<span class="csdtag">&lt;/CsOptions&gt;</span>
<span class="csdtag">&lt;CsInstruments&gt;</span>

<span class="ohdr">sr</span> <span class="op">=</span> 44100 
<span class="ohdr">ksmps</span> <span class="op">=</span> 32 
<span class="ohdr">0dbfs</span>  <span class="op">=</span> 1 
<span class="ohdr">nchnls</span> <span class="op">=</span> 2

<span class="oblock">instr</span> 1

idamp <span class="op">=</span> p4			<span class="comment">;vary damping amount</span>
asig <span class="opc">stix</span> .5, 0.01, 30, idamp
     <span class="opc">outs</span> asig, asig

<span class="oblock">endin</span>
<span class="csdtag">&lt;/CsInstruments&gt;</span>
<span class="csdtag">&lt;CsScore&gt;</span>

<span class="stamnt">i</span>1 0 1 .3
<span class="stamnt">i</span>1 + 1  &gt;
<span class="stamnt">i</span>1 + 1  &gt;
<span class="stamnt">i</span>1 + 1 .95

<span class="stamnt">e</span>
<span class="csdtag">&lt;/CsScore&gt;</span>
<span class="csdtag">&lt;/CsoundSynthesizer&gt;</span>
</pre>
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        <p><br class="example-break" />
    </p>
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      <div class="refsect1">
        <a id="idp151667424"></a>
        <h2>See Also</h2>
        <p>
      <a class="link" href="cabasa.html" title="cabasa"><em class="citetitle">cabasa</em></a>,
      <a class="link" href="crunch.html" title="crunch"><em class="citetitle">crunch</em></a>,
      <a class="link" href="sandpaper.html" title="sandpaper"><em class="citetitle">sandpaper</em></a>,
      <a class="link" href="sekere.html" title="sekere"><em class="citetitle">sekere</em></a>
    </p>
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      <div class="refsect1">
        <a id="idp151672416"></a>
        <h2>Credits</h2>
        <p>
      </p>
        <table border="0" summary="Simple list" class="simplelist">
          <tr>
            <td>Author: Perry Cook, part of the PhOLIES (Physically-Oriented Library of Imitated Environmental Sounds)</td>
          </tr>
          <tr>
            <td>Adapted by John ffitch</td>
          </tr>
          <tr>
            <td>University of Bath, Codemist Ltd.</td>
          </tr>
          <tr>
            <td>Bath, UK</td>
          </tr>
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        <p>
    </p>
        <p>New in Csound version 4.07</p>
        <p>Added notes by Rasmus Ekman on May 2002.</p>
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